Poquoson, VA 23090 Frost Dates
Poquoson, VA: when does the frost end?
Around 04/01 is the usual last spring frost, about 216 days away. Fall's first freeze usually shows up around 11/09, roughly 221 days after the last spring frost.
Zone 7b (5 to 10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Poquoson, not a forecast for this year.
Stretching the season past the first frost
With roughly 10 weeks until Poquoson's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Poquoson's last frost
04/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/18 and only about 1 year in 10 sees frost after that.
Poquoson against the rest of the dataset
Poquoson's growing season runs about 221 days, ranking 12,469 of 40,283 US ZIP codes measured here, longest to shortest. Within VA, it ranks 270 of 1,178.
Learn more
Before leaning on 23090's figures: zone vs. frost date explains why Zone 7b and Poquoson's frost date answer different questions, while the frost range explains how to read the range around Poquoson's dates instead of trusting one.